Malware Analysis Report

2025-08-11 07:28

Sample ID 240802-kl1lqatdjl
Target c4cf6b826928676b959fbd63cc081a8c.elf
SHA256 2d7e8ffe5b44522e8979c99cc9e59ca460cf25f07bc76025162fec5807341834
Tags
upx mirai botnet
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2d7e8ffe5b44522e8979c99cc9e59ca460cf25f07bc76025162fec5807341834

Threat Level: Known bad

The file c4cf6b826928676b959fbd63cc081a8c.elf was found to be: Known bad.

Malicious Activity Summary

upx mirai botnet

Mirai

UPX packed file

Modifies Watchdog functionality

Changes its process name

Reads runtime system information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-02 08:42

Signatures

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-02 08:42

Reported

2024-08-02 08:44

Platform

debian12-armhf-20240221-en

Max time kernel

143s

Max time network

160s

Command Line

[/tmp/c4cf6b826928676b959fbd63cc081a8c.elf]

Signatures

Mirai

botnet mirai

Modifies Watchdog functionality

Description Indicator Process Target
File opened for modification /dev/watchdog /tmp/c4cf6b826928676b959fbd63cc081a8c.elf N/A
File opened for modification /dev/misc/watchdog /tmp/c4cf6b826928676b959fbd63cc081a8c.elf N/A

Changes its process name

Description Indicator Process Target
Changes the process name, possibly in an attempt to hide itself /var/www/html /tmp/c4cf6b826928676b959fbd63cc081a8c.elf N/A

Reads runtime system information

Description Indicator Process Target
File opened for reading /proc/self/exe /tmp/c4cf6b826928676b959fbd63cc081a8c.elf N/A

Processes

/tmp/c4cf6b826928676b959fbd63cc081a8c.elf

[/tmp/c4cf6b826928676b959fbd63cc081a8c.elf]

Network

Country Destination Domain Proto
NL 194.55.186.158:18999 tcp
US 1.1.1.1:53 debian12-armhf-20240221-en-4 udp
US 1.1.1.1:53 debian12-armhf-20240221-en-4 udp
US 1.1.1.1:53 debian12-armhf-20240221-en-4 udp
US 1.1.1.1:53 debian12-armhf-20240221-en-4 udp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp
NL 194.55.186.158:18999 tcp

Files

memory/710-1-0x00008000-0x0002a5fc-memory.dmp